this is because of the ‘notify me of follow up replies via email’, which is actually the same as ‘subscribe’
If the user is not subscribed, then when the page is sent to the browser the page shows ‘subscribe’ as an option and has the ‘notify me’ unticked.
when you click the subscribe, the database is changed, but the box is still left unticked. So on posting a reply, the absence of a tick ‘unsubscribes’ the user that has just subscribed 🙂
It would be possible to create some js to correct this, but beyond free help.
however given that someone replying probably wants to be subscribed :
if you are using or want to use
go to
dashboard>settings>bbp style pack>Topic/Reply Form>item 6 and set as default
or use:
